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Metal Bearing Installation Method
- Jul 01, 2017 -

Metal bearing knowledge

The rolling sound of the metal bearing uses the sounder to check the size and sound quality of the rolling bearing in the running metal bearing. If the metal bearing is damaged by slight peeling, it will send out abnormal sound and irregular sound. Distinguish.

Metal bearing vibration Metal bearing vibration is very sensitive to metal bearing damage, such as peeling, indentation, corrosion, cracks, wear, etc. will be reflected in the metal bearing vibration measurement, so by using a special metal bearing vibration measuring device (frequency Analyzer, etc.) can measure the size of the vibration, through the frequency can not be inferred from the specific circumstances of the exception. The measured values are different depending on the conditions of use of the metal bearings or the position of the sensor installation. Therefore, Metal Bearing it is necessary to determine the judgment criteria after analyzing and comparing the measured values of each machine in advance.

Metal bearing temperature metal bearing temperature, the general metal bearing outside the room temperature can be inferred, if the use of oil hole can directly measure the shaft

How to improve the accuracy of metal bearings?

1. After the installation of metal bearings in the host, such as measuring the radial runout of the spindle, you can find that each of the measured values have a certain change; Metal Bearing continuous measurement, you can find a certain number of revolutions, the change will Approximately recurring. The scale of the degree of change is the "quasi-periodic" of the cyclic rotation accuracy, and the magnitude of the change in the quasi-period is large, that is, the rotation rotation accuracy is poor The

2. A factory trial precision instruments, spindle with 6202 / P2-type metal bearings and its accuracy is still unable to meet the requirements, after the rehearsal and on the production of the raceway to replace the inner ring, and the ball for waxy measurement, To a size of each group of three, each group of balls to take close to 120 ° interval apart, due to the reduction of a heavy processing surface, Metal Bearing but also reduces the weight of a surface, while increasing the shaft of a metal bearing system stiffness, and the maximum three Grain and the smallest three ball close to the equidistant distribution, but also improve the rotation accuracy of the shaft, so to meet the accuracy requirements of the instrument.

In understanding to improve the accuracy of metal bearings, Metal Bearing I believe we will gain a lot of use in the use.

Second, the correct installation of metal bearings

1. To clean metal bearings and related parts.

2. Check the size and finishing of the relevant parts.

3. Metal bearings are specially installed

The installation of metal bearings should be based on the metal bearing structure, size and metal bearing parts with the nature of the fit, the pressure should be directly applied to the tight fit on the end of the ring, not through the rolling body to pass pressure.